Core i7 3770K review with Z77 -
Ivy Bridge Architecture

Ivy Bridge Architecture

Ivy Bridge Turbo Mode is based on revision 2.0, which makes the Turbo mode much more dynamic. It can alter several stages and levels "per core" in clock frequencies. Depending on CPU load, one or more CPU cores will run above its advertised specification. It has changed as there are several steps in which the Turbo mode will be utilized. Dynamic Turbo (Turbo 2.0) will allow the CPU power to exceed the TDP value when the rest of the platform is relatively cool. The frequency gain is expected to be up to 37% for a short time and say 20% in other scenarios. For overclockers it will be interesting to know that each CPU core can be overclocked independently. So if you learn that one CPU core is a little weaker... you could clock it lower and the rest higher, albeit it's a little far-fetched.

But let's bullet up some of the primary features and we'll focus on the 3770K right now:

Intel Turbo Boost Technology 2.0: Dynamically increases the processor frequency up to 3.90GHz when applications demand more performance. Speed when you need it, energy efficiency when you dont.

Intel Hyper-Threading Technology: Allows each core of the processor to work on two tasks at the same time providing unprecedented processing capability for better multi-tasking, and for threaded applications.

Intel Smart Cache: 8MB of shared cached allows faster access to your data by enabling dynamic and efficient allocation of the cache to match the needs of each core significantly reducing latency to frequently used data and improving performance.

Integrated Memory Controller: Supports 2 channels of DDR3-1600 memory with 2 DIMMs per channel. Support for memory based on the Intel Extreme Memory Profile (Intel XMP) specification2 up-to 2400 and some even 2800 MHz.

Chipset/Motherboard Compatibility: Compatible with supported Intel 6 Series Chipsets and Series 7 chipsets.

AES-NI: Provides 6 processor instructions that help to improve performance for AES encryption and decryption algorithms.

An integrated GPUThe IGP inside the processor is called the Intel Graphics Media Accelerator HD, and is derived from existing Intel graphics products, but with some nice new improvements. The embedded graphics core is an updated model from the Sandy Bridge version, though completely overhauled, improved and more powerful with an improved video en/decoder now as well.

The Intel 4000 series integrated graphics core is incorporated onto the same die as the CPU, and it also has access to Intel's automatic overclocking Turbo Boost features.

Integrated graphics core running at 650 MHz for the high end processor models. With Turbo Boost Technology enabled, it can achieve up to 1150 MHz clock speed on the graphics core. The new graphics core has DirectX 11 and OpenCL 1.1 support as well as 30% higher performance compared to the predecessor found in Sandy Bridge processors.

Thirdly, Ivy Bridge will feature PCI Express 3.0 x16 interconnection as well as a PCIe 2.0 x4 controller, we'll talk about that in a bit though.

Ivy Bridge has an appealing and capable GPU, gaming wise you can expect entry-level dedicated graphics performance but we like to see the unit more as a video processor. It is exceptionally good for stuff like Blu-ray playback and it even supports 3D playback thanks to HDMI 1.4a implementation. It supports Intel Wireless Display, will use the embedded DisplayPort standard to connect the GPU to the screen, and is capable of handling the task of transcoding video. Again, gaming wise performance went up quite a bit, much closer to AMD's Fusion implementations. More on that in our benchmarks later on of course.

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